Re: [OSM-talk-be] POIs

Mon, 27 Jul 2015 09:48:47 -0700

On 2015-07-25 22:01, Marc Zoutendijk wrote :
Recently OSMF asked for money to support their servers and within short time they collected that money from the community.[1]
Don't you think that if a service (like overpass) is succesfull and really needed, they should do everything possible to improve that service and keep it for the community?
This is already possible somehow for no money.
It might be suggested that all the servers running overpass be accessed with a single DNS name like overpass.openstreetmap.org that would contain, with a short TTL,  the IP addresses, or, better, the true names of all the overpass servers that can be used.
This would not only balance the load across the servers, but also free the developers from updating their applications when servers close or open (and get removed from/added to that list), and let the application continue to work if a server is temporarily unavailable (an application is supposed to try all the IP addresses until they get a reply).

I guess the person to ask directly is (if he replies):
$ dig openstreetmap.org SOA

;; ANSWER SECTION:
openstreetmap.org.    2560    IN    SOA    a.ns.bytemark.co.uk. hostmaster.openstreetmap.org.

That is what OSM.org already does with 3 servers (addresses in bold):

$ dig www.openstreetmap.org A @a.ns.bytemark.co.uk

; <<>> DiG 9.8.1-P1 <<>> www.openstreetmap.org A @a.ns.bytemark.co.uk
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26370
;; flags: qr aa rd; QUERY: 1, ANSWER: 3, AUTHORITY: 3, ADDITIONAL: 7
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;www.openstreetmap.org.        IN    A

;; ANSWER SECTION:
www.openstreetmap.org.    600    IN    A    193.63.75.103
www.openstreetmap.org.    600    IN    A    193.63.75.99
www.openstreetmap.org.    600    IN    A    193.63.75.100

;; AUTHORITY SECTION:
openstreetmap.org.    259200    IN    NS    a.ns.bytemark.co.uk.
openstreetmap.org.    259200    IN    NS    b.ns.bytemark.co.uk.
openstreetmap.org.    259200    IN    NS    c.ns.bytemark.co.uk.

;; ADDITIONAL SECTION:
a.ns.bytemark.co.uk.    86400    IN    A    80.68.80.26
a.ns.bytemark.co.uk.    86400    IN    AAAA    2001:41c8:2::3
a.ns.bytemark.co.uk.    86400    IN    A    80.68.80.26
b.ns.bytemark.co.uk.    86400    IN    A    85.17.170.78
c.ns.bytemark.co.uk.    86400    IN    A    80.68.80.27
c.ns.bytemark.co.uk.    86400    IN    AAAA    2001:41c8:2::5
c.ns.bytemark.co.uk.    86400    IN    A    80.68.80.27

;; Query time: 47 msec
;; SERVER: 80.68.80.26#53(80.68.80.26)
;; WHEN: Mon Jul 27 18:09:22 2015
;; MSG SIZE  rcvd: 288
and Google with 36 servers ...

Cheers

André.

$ dig mts.google.com @ns1.google.com

; <<>> DiG 9.8.1-P1 <<>> mts.google.com @ns1.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21896
;; flags: qr aa rd; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 0
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;mts.google.com.            IN    A

;; ANSWER SECTION:
mts.google.com.        604800    IN    CNAME    mts.l.google.com.
mts.l.google.com.    300    IN    A    194.78.0.231
mts.l.google.com.    300    IN    A    194.78.0.224
mts.l.google.com.    300    IN    A    194.78.0.244
mts.l.google.com.    300    IN    A    194.78.0.217
mts.l.google.com.    300    IN    A    194.78.0.223
mts.l.google.com.    300    IN    A    194.78.0.245
mts.l.google.com.    300    IN    A    194.78.0.230
mts.l.google.com.    300    IN    A    194.78.0.251
mts.l.google.com.    300    IN    A    194.78.0.210
mts.l.google.com.    300    IN    A    194.78.0.237
mts.l.google.com.    300    IN    A    194.78.0.238
mts.l.google.com.    300    IN    A    194.78.0.216

;; Query time: 41 msec
;; SERVER: 216.239.32.10#53(216.239.32.10)
;; WHEN: Mon Jul 27 18:21:45 2015
;; MSG SIZE  rcvd: 244

$ dig mts0.google.com @ns1.google.com

; <<>> DiG 9.8.1-P1 <<>> mts0.google.com @ns1.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36260
;; flags: qr aa rd; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 0
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;mts0.google.com.        IN    A

;; ANSWER SECTION:
mts0.google.com.    604800    IN    CNAME    mts.l.google.com.
mts.l.google.com.    300    IN    A    194.78.0.146
mts.l.google.com.    300    IN    A    194.78.0.167
mts.l.google.com.    300    IN    A    194.78.0.173
mts.l.google.com.    300    IN    A    194.78.0.159
mts.l.google.com.    300    IN    A    194.78.0.174
mts.l.google.com.    300    IN    A    194.78.0.153
mts.l.google.com.    300    IN    A    194.78.0.166
mts.l.google.com.    300    IN    A    194.78.0.187
mts.l.google.com.    300    IN    A    194.78.0.152
mts.l.google.com.    300    IN    A    194.78.0.180
mts.l.google.com.    300    IN    A    194.78.0.181
mts.l.google.com.    300    IN    A    194.78.0.160

;; Query time: 42 msec
;; SERVER: 216.239.32.10#53(216.239.32.10)
;; WHEN: Mon Jul 27 18:23:41 2015
;; MSG SIZE  rcvd: 245

$ dig mts1.google.com @ns1.google.com

; <<>> DiG 9.8.1-P1 <<>> mts1.google.com @ns1.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 50033
;; flags: qr aa rd; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 0
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;mts1.google.com.        IN    A

;; ANSWER SECTION:
mts1.google.com.    604800    IN    CNAME    mts.l.google.com.
mts.l.google.com.    300    IN    A    194.78.99.24
mts.l.google.com.    300    IN    A    194.78.99.31
mts.l.google.com.    300    IN    A    194.78.99.52
mts.l.google.com.    300    IN    A    194.78.99.53
mts.l.google.com.    300    IN    A    194.78.99.38
mts.l.google.com.    300    IN    A    194.78.99.59
mts.l.google.com.    300    IN    A    194.78.99.46
mts.l.google.com.    300    IN    A    194.78.99.18
mts.l.google.com.    300    IN    A    194.78.99.32
mts.l.google.com.    300    IN    A    194.78.99.45
mts.l.google.com.    300    IN    A    194.78.99.25
mts.l.google.com.    300    IN    A    194.78.99.39

;; Query time: 41 msec
;; SERVER: 216.239.32.10#53(216.239.32.10)
;; WHEN: Mon Jul 27 18:24:30 2015
;; MSG SIZE  rcvd: 245

$ dig mts2.google.com @ns1.google.com

; <<>> DiG 9.8.1-P1 <<>> mts2.google.com @ns1.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42206
;; flags: qr aa rd; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 0
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;mts2.google.com.        IN    A

;; ANSWER SECTION:
mts2.google.com.    604800    IN    CNAME    mts.l.google.com.
mts.l.google.com.    300    IN    A    194.78.99.174
mts.l.google.com.    300    IN    A    194.78.99.187
mts.l.google.com.    300    IN    A    194.78.99.146
mts.l.google.com.    300    IN    A    194.78.99.180
mts.l.google.com.    300    IN    A    194.78.99.167
mts.l.google.com.    300    IN    A    194.78.99.160
mts.l.google.com.    300    IN    A    194.78.99.159
mts.l.google.com.    300    IN    A    194.78.99.166
mts.l.google.com.    300    IN    A    194.78.99.173
mts.l.google.com.    300    IN    A    194.78.99.153
mts.l.google.com.    300    IN    A    194.78.99.152
mts.l.google.com.    300    IN    A    194.78.99.181

;; Query time: 43 msec
;; SERVER: 216.239.32.10#53(216.239.32.10)
;; WHEN: Mon Jul 27 18:24:42 2015
;; MSG SIZE  rcvd: 245

$ dig mts3.google.com @ns1.google.com

; <<>> DiG 9.8.1-P1 <<>> mts3.google.com @ns1.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42930
;; flags: qr aa rd; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 0
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;mts3.google.com.        IN    A

;; ANSWER SECTION:
mts3.google.com.    604800    IN    CNAME    mts.l.google.com.
mts.l.google.com.    300    IN    A    194.78.99.245
mts.l.google.com.    300    IN    A    194.78.99.244
mts.l.google.com.    300    IN    A    194.78.99.217
mts.l.google.com.    300    IN    A    194.78.99.237
mts.l.google.com.    300    IN    A    194.78.99.238
mts.l.google.com.    300    IN    A    194.78.99.210
mts.l.google.com.    300    IN    A    194.78.99.231
mts.l.google.com.    300    IN    A    194.78.99.251
mts.l.google.com.    300    IN    A    194.78.99.224
mts.l.google.com.    300    IN    A    194.78.99.216
mts.l.google.com.    300    IN    A    194.78.99.223
mts.l.google.com.    300    IN    A    194.78.99.230

;; Query time: 41 msec
;; SERVER: 216.239.32.10#53(216.239.32.10)
;; WHEN: Mon Jul 27 18:24:52 2015
;; MSG SIZE  rcvd: 245









_______________________________________________
Talk-be mailing list
[email protected]
https://lists.openstreetmap.org/listinfo/talk-be

Reply via email to